【摘要】 利用1958-2009年间那曲地区绵羊的统计资料,对那曲地区绵羊数量变化的特征和规律进行了分析。结果表明:从1958-2001年44 a间,那曲地区绵羊数量占畜群比例为48%~63%,绵羊数量虽呈现增长趋势,但绵羊增长率也逐渐得到控制;从2002-2009年8 a间,绵羊数量占畜群比例为48%~55%,绵羊增长率逐年呈下降趋势,经过50多年的畜种群结构的调整,已经达到"发展牦牛(含黄牛)、适度发展山羊、减少绵羊、控制马"的总体原则,为那曲地区畜牧业的良性发展奠定了基础。更多还原

【Abstract】 The quantity change of Nagqu sheep’s characteristics and laws was analyzed by the sheep population statistics in Nagqu from 1958 to 2009.The results showed that sheep proportion to livestock was between 48% and 63% from 1958 to 2001 and although the number of sheep growth is on the rise,but also annual growth rate has been put on the control little by little.However,sheep proportion to livestock was between 48% and 55%,the number of sheep and annual growth rate was declined gradually from 2002 to 2009.Livestock population structure adjustment has reached "The general principles of development yak(including cattle),moderate development goats,reduce sheep,control horse" since 1958,which laid a foundation for the positive development of animal husbandry in Nagqu prefecture.更多还原